K. P. Schmidt

activity

20132026

most citedMutually attracting spin waves in the square-lattice quantum antiferromagnet

57 citations · 283 across the 25 of their papers we have counts for

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quant-ph2026

Geometry Dependence of Error Thresholds in Two-Dimensional Toric Codes

D. Lessing, A. Langheld, C. Krämer +2

We investigate how the lattice geometry influences the error thresholds of two-dimensional toric codes. In the presence of bit- or phase-flip errors, the toric code maps onto the t…

quant-ph2026

Effective quasiparticle conserving Lindbladians in the thermodynamic limit

Lea Lenke, Kai Phillip Schmidt

Open quantum many-body systems are commonly described by Lindblad master equations, yet the treatment of Lindbladian operators in the thermodynamic limit remains a major challenge.…

cond-mat.str-el2026

Unconventional $Z_{2} \times Z_{2} \times Z_{2}$ topological order in the kagome XY toric code

C. Kölbl, M. Vieweg, K. P. Schmidt

We investigate the quantum phase diagram of the XY toric code (XYTC) on the kagome lattice consisting of $X Y$ hexagonal and triangular plaquette operators and conserved star operat…

Geometry Dependence of Error Thresholds in Two-Dimensional Toric Codes

Effective quasiparticle conserving Lindbladians in the thermodynamic limit

Unconventional Z2​×Z2​×Z2​ topological order in the kagome XY toric code

Unconventional $Z_{2} \times Z_{2} \times Z_{2}$ topological order in the kagome XY toric code